I had an initial phone interview on Hacker Rank with an engineer at Bloomberg. Then was called to have a 2:1 interview with junior engineers, on site. Then was called back for a final on-site interview with a Senior Engineer and HR rep.
First two rounds were algorithms and data structure questions and the final round was more of a systems development question. I was, at the final stage, rejected due to conflict of interests and goals.
Recruiter was very friendly and helpful and they even provided feedback!